I-China custom aluminium alloy castings byukuphonsa isihlabathikanye nezinqubo zokubunjwa kwegobolondo.
Igama elithi Isihlabathi Esiluhlaza lisho ukuba khona komswakama esihlabathini esibumbayo futhi libonisa ukuthi isikhunta asibhakwa noma somiswa. Isihlabathi esingahluziwe siyambiwa bese siyacutshungulwa ukuze sinikeze ukusatshalaliswa okungaguquki kokulinganisa okusanhlamvu. Lapho kusetshenzwa ukuze kubunjwe, ubumba lwemvelo lwengezwa ukuze kuhlanganiswe okusanhlamvu ndawonye.
Uthuli lwamalahle (olwaziwa nge-Sea Coal) lwengezwa ukulawula izinga lokuphonsa ngesikhathi sokunwetshwa kwesihlabathi lapho izinsimbi ezishisayo zithelwa esikhunjeni. Ezinye izithasiselo, njenge-pitch, i-cellulose kanye nofulawa we-silica, nazo ziyasetshenziswa. Isengezo esisetshenzisiwe sincike ekubunjweni kwensimbi. Isihlabathi sihlanganiswa ku-mullor noma i-mixer, lapho amanzi kanye nezithasiselo zihlanganiswa nesihlabathi.
Isihlabathi sibe sesilungele ukusetshenziswa ukwenza isikhunta. Kunezindlela ezimbalwa zokubumba kodwa zonke izindlela zikhama noma zihlanganise isihlabathi ngokumelene nephethini ukwenza isithombe sengxenye ezophonswa. Amaphethini ahlukaniswa nama-halves esikhunta noma ikhekhe lesikhunta bese isikhunta siyavalwa senze ingxenye yesikhala. Izinhlobo zokubumba zisukela ekubumbeni okuzenzakalelayo okunesivinini esiphezulu, ukubumba kwepuleti lokufanisa okuzenzakalelayo, ukubumba kweflask okuqinile okuzenzakalelayo (okusetshenziselwa ukubumba okukhulu) kanye nokubunjwa kwe-jolt squeeze. Izibunjwa ezinkulu nazo zenziwa phansi futhi ziqoqwe ngesandla. Namuhla, ukubumba kwenziwa ngokuzenzakalelayo futhi isikhunta sibekwe emshinini wokubamba isikhunta ukuze kuthelwe, ukuvumela ukubunjwa kuqiniswe futhi kuphole. Ukucushwa kwemishini yokuphatha isikhunta kufaka phakathi imigqa yokukhomba, imigqa yokulupha kanye nemigqa yemoto yesikhunta. Ukuthululwa kwensimbi kungenziwa ngokuzenzakalelayo ngesithando somlilo sokuthulula noma kuthuthelwe ekubunjweni ngamaladi. Amandla e-Ladle angahluka ngosayizi ukusuka kumaphawundi ayi-100 kuya kumathani amaningana.
Ngemva kokuba insimbi esesikhunjini isiqinile futhi isipholile, isikhunta silahlwa phezu kwe-shakeout ehlukanisa ukubunjwa esihlabathini. Inqubo ye-shakeout ingenziwa ngezinhlobonhlobo zemishini. Ukulingisa bese kuchithwa (kuhlukaniswa nesistimu yomgijimi). Isistimu yomgijimi isetshenziselwa ukufaka insimbi emgodini wokuphonsa. Isistimu yomgijimi ibuyiselwa kumnyango wokuncibilika ukuze iphinde isetshenziswe futhi ukusakaza kuthunyelwa kunqubo yokuqedela. Isihlabathi siphinde sisetshenziswe ngemva kokuba sihloliwe futhi sapholiswa. Isihlabathi esisha siphinde sengezwe ngokusekelwe esilinganisweni senani lensimbi ethelwe enanini elinikeziwe lesihlabathi.
Ukuqedela ukulingisa ngokuvamile kuqala ngokuqhunyiswa kwesibhamu ukuze kukhishwe isihlabathi esinamathele ekulingiseni. Indawo yokuqedela ingenziwa ngokuzenzakalelayo kakhulu, isebenzisa amarobhothi kanye nezinhlelo ze-Vision, noma ingaba uhlelo lwezandla olulula olusebenza ngesandla. Izinhlobo ezijwayelekile zomsebenzi wokuqeda zihlanganisa ukugaya amasondo, ukugaya ibhande, ukusika i-trim press, ukusika amasaha, ukusika i-air arch nokugaya ngesandla. Indlela esetshenzisiwe incike ekubunjweni kwensimbi kanye nobukhulu bokubunjwa.
I-Aluminiyamu nama-alloys ayo ayengaphonswa futhi athululwe ngokusakazwa kwe-high pressure, i-low pressure die cast, ukuphonsa amandla adonsela phansi, ukuphonsa isihlabathi, ukutshala imali kanyeukukhishwa kwegwebu elilahlekile. Ngokuvamile, ukukhishwa kwe-aluminium alloy kunesisindo esincane kodwa kunokwakheka okuyinkimbinkimbi nendawo engcono.
I-Aluminium Alloy Siyiphonsa Ngenqubo Yokusakaza Isihlabathi:
• I-Cast Aluminium Alloy nge-China Standard: ZL101, ZL102, ZL104
• I-Cast Aluminium Alloy ngu-USA Stardard: ASTM A356, ASTM A413, ASTM A360
• I-Cast Aluminium Alloy ngamanye ama-Starndards: AC3A, AC4A, AC4C, G-AlSi7Mg, G-Al12
| Kuhlanganisiwe | Inhlangano ye-aluminium | Ubulukhuni BHN | Amandla okuqina aphezulu, i-MPa | Isivuno Amandla, MPa | I-Modulus of elasticity, i-GPa | Ukukhathala Amandla, MPa |
| A03550 | AA355.0 | 75-105 | 255 | 185 | 70.3 | 69.0 |
| A03600 | I-AA360.0 | 75.0 | 300 | 170 | 71.0 | 138.0 |
| A03800 | AA380.0 | 80.0 | 317 | 159 | 71.0 | 138.0 |
| A03830 | AA383.0 | 75.0 | 310 | 152 | / | 145.0 |
| A03840 | AA384.0 | 85.0 | 331 | 165 | / | 140.0 |
| A03900 | AA390.0 | 120.0 | 280 | 240 | 81.2 | 140.0 |
| A04130 | I-AA413.0 | 80.0 | 296 | 145 | 71.0 | 130.0 |
| A04430 | AA443.0 | 30-60 | 145 | 48.3 | 71.0 | / |
| A05180 | I-AA518.0 | 80.0 | 310 | 193 | 69.0 | 160.0 |
I-Aluminium Alloy Castings Izici:
• Ukusebenza kokulingisa kufana nalokho kokusakazwa kwensimbi, kodwa izici zokumakhenikha ezihlobene zincipha kakhulu njengoba ukushuba kodonga kukhula.
• Ukuqina kodonga lokulingisa akufanele kube kukhulu kakhulu, futhi ezinye izici zesakhiwo ziyefana nalezo zokubunjwa kwensimbi.
• Isisindo esincane kodwa isakhiwo esiyinkimbinkimbi
• Izindleko zokulingisa ngekhilogremu ngayinye yokubunjwa kwe-aluminium ziphakeme kunezokubunjwa kwensimbi nensimbi.
• Uma kukhiqizwa inqubo yokulingisa ifa, izindleko zesikhunta nephethini zingaba phezulu kakhulu kunezinye izinqubo zokulingisa. Ngakho-ke, ukulingwa kwe-aluminiyamu eyi-die casting kungalungela kangcono ukulingwa kwenani elikhulu elifunayo.
| Ukwakheka Kwekhemikhali Okujwayelekile Kwe- Investment Casting Aluminium Alloy nge-North American Specifications | ||||||||||||||
| I-Alloy Grade | Ukucaciswa | Al | Cu | Si | Zn | Mg | Cr | Fe | Mn | Ti | Ag | Be | Ni | P |
| I-A356-T6 | I-AMS 4218 | U-Bal | 0.20 | 6. 5 - 7. 5 | 0.10 | 0.25-0.45 | - | 0.20 | 0.10 | 0.20 | - | -- | - | - |
| awu 357 | I-AMS 4219 | U-Bal | 0.20 | 6. 5 - 7. 5 | 0.10 | 0.40-.70 | - | 0.20 | 0.10 | 0.04-0.20 | - | 0.04-0.07 | - | - |
| F 357 | I-AMS 4289 | U-Bal | 0.20 | 6.5-7.5 | 0.10 | 0.40-.70 | - | 0.10 | 0.10 | 0.04-0.20 | - | 0.002 | - | - |
| E357 | I-AMS 4288 | U-Bal | - | 6.5-7.5 | 0.10 | 0.55-0.60 | - | 0.10 | 0.10 | 0.10-0.20 | - | 0.002 | - | - |
| A201 | I-AMS 4229 | U-Bal | 4.0-5.0 | 0.05 | - | 0.15-0.35 | - | 0.10 | 0.20-0.34 | 0.15-0.35 | 0.40-1.0 | - | - | - |
| C355 | I-AMS 4215 | U-Bal | 1.0-1.5 | 4.5-5.5 | 0.10 | 0.40-0.60 | - | 0.20 | 0.10 ubuningi | 0.20 | - | - | - | - |
| A206 | I-AMS 4235 | U-Bal | 4.2-5.0 | .05 ubuningi | 0.05 ubuningi | 0.20-0.35 | - | 0.10ma | 0.20-0,50 | 0.15-0.30 | - | - | 0.5 ubuningi | - |
| B206 | U-Bal | 4.2-5.0 | .05 ubuningi | 0.05 ubuningi | 0.15-0.35 | - | 0.10 ubuningi | 0.20-0,50 | 0 10 | - | - | 0.5 ubuningi | - | |
